Einmal Ist Keinmal plot
Composer and musician Peter Weselin from Düsseldorf wants to spend a relaxing holiday with his uncle in the Saxon Vogtland Klingenthal. However, the annual music festival is just around the corner and Peter is asked for help. The peace and quiet of his holiday is over, so at the request of the beautiful Anna, he writes a schlager for the youth dance group. Through the collaboration with Anna, Peter eventually falls in love with her, despite her initial capriciousness. However, he is not the only one who has been touched by Cupid, because even his uncle has developed a crush on Anna's girlfriend Elvira.